Light emitting device and display device using the same

Abstract

A light emitting device and a display device using the same. The light emitting device includes: a substrate provided with recesses formed in a stripe pattern; first electrodes disposed inside the recesses in a stripe pattern aligned parallel to the recesses; electron emission regions disposed on the first electrodes; second electrodes disposed in a stripe pattern aligned in a direction crossing the first electrodes and closely fixed to the substrate; and an adhesive member for fixing the second electrodes to the substrate. The second electrodes include mesh portions spaced apart from tops of the electron emission regions in crossing of the first electrodes and the second electrodes, supports surrounding the mesh portions and connected with the substrate, and combining grooves formed at edges of the supports facing the substrate. The adhesive members are disposed in the combining grooves of the second electrodes to connect the second electrodes with the substrate.

1. A light emitting device comprising:
 a first substrate having recesses in a stripe pattern extending along a first direction; 
 a plurality of first electrodes inside the recesses in a stripe pattern extending along a second direction in parallel with the first direction of the recesses; 
 a plurality of electron emission regions on the first electrodes; 
 a plurality of second electrodes in a stripe pattern extending along a third direction crossing the second direction of the first electrodes and fixed to the first substrate; and 
 an adhesive member for fixing the second electrodes to the first substrate, 
 wherein the second electrodes comprise a plurality of mesh portions spaced apart from tops of the electron emission regions at crossing regions of the first electrodes and the second electrodes, a plurality of supports surrounding the mesh portions and connected with the first substrate, and a plurality of combining grooves at edges of the supports facing the first substrate, and 
 wherein the adhesive members are in the combining grooves of the second electrodes to connect the second electrodes with the first substrate. 
 
     
     
       2. The light emitting device of  claim 1 , further comprising:
 a second substrate opposing the first substrate; and 
 a third electrode and a phosphor layer on the second substrate and between the first substrate and the second substrate. 
 
     
     
       3. The light emitting device of  claim 2 , wherein
 the second electrodes are each composed of a metal plate having a greater thickness than that of a corresponding one of the first electrodes and are spaced apart from the electron emission regions. 
 
     
     
       4. The light emitting device of  claim 3 , wherein
 the combining grooves are formed by half etching corners of the supports. 
 
     
     
       5. The light emitting device of  claim 3 , wherein
 the combining grooves are at corners extending along a length direction of the second electrodes. 
 
     
     
       6. The light emitting device of  claim 2 , wherein
 each of the recesses has a greater width than that of a corresponding one of the first electrodes, and a greater depth than the total thickness of the corresponding one of the first electrodes and a corresponding one of the electron emission regions. 
 
     
     
       7. The light emitting device of  claim 2 , wherein
 the adhesive members are formed by baking a glass paste. 
 
     
     
       8. The light emitting device of  claim 1 , wherein
 each of the mesh portions has a plurality of openings for passing an electron beam emitted from a corresponding one of the electron emission regions. 
 
     
     
       9. A display device comprising:
 a light emitting device comprising:
 a first substrate having recesses in a stripe pattern extending along a first direction; 
 a plurality of first electrodes inside the recesses in a stripe pattern extending along a second direction in parallel with the first direction of the recesses; 
 a plurality of electron emission regions on the first electrodes; 
 a plurality of second electrodes in a stripe pattern extending along a third direction crossing the second direction of the first electrodes and closely fixed to the first substrate; and 
 an adhesive member for fixing the second electrodes to the first substrate, 
 wherein the second electrodes comprise a plurality of mesh portions spaced apart from tops of the electron emission regions at crossing regions of the first electrodes and the second electrodes, a plurality of supports surrounding the mesh portions and connected with the first substrate, and a plurality of combining grooves at edges of the supports facing the first substrate, and 
 wherein the adhesive members are in the combining grooves of the second electrodes to connect the second electrodes with the first substrate; and 
 
 a display panel configured to be supplied with light from the light emitting device to display images. 
 
     
     
       10. The display device of  claim 9 , further comprising:
 a second substrate opposing the first substrate; and 
 a third electrode and a phosphor layer on the second substrate and between the first substrate and the second substrate. 
 
     
     
       11. The display device of  claim 10 , wherein
 the second electrodes are each composed of a metal plate having a greater thickness than that of a corresponding one of the first electrodes and are spaced apart from the electron emission regions. 
 
     
     
       12. The display device of  claim 11 , wherein
 the combining grooves are formed by half etching corners of the supports. 
 
     
     
       13. The display device of  claim 11 , wherein
 the combining grooves are at corners extending along a length direction of the second electrodes. 
 
     
     
       14. The display device of  claim 10 , wherein
 each of the recesses has a greater width than that of a corresponding one of the first electrodes, and a greater depth than the total thickness of the corresponding one of the first electrodes and a corresponding one of the electron emission regions. 
 
     
     
       15. The display device of  claim 10 , wherein
 the adhesive members are formed by baking a glass paste. 
 
     
     
       16. The display device of  claim 9 , wherein
 each of the mesh portions has a plurality of openings for passing an electron beam emitted from a corresponding one of the electron emission regions.